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How Czechia ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to Czechia over time.
The largest autonomous systems registered to Czechia by IPv4 footprint.
Czechia against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
715 autonomous systems registered to Czechia. Click an AS for detail.
| 14 |
| AS2571CZ | DHLNET - DHL Information Services (Europe) s.r.o | 438.5K | 101 |
| AS29208CZ | QUANTCOM-AS Quantcom, a.s. | 274.4K | 41 |
| AS28725CZ | CETIN-AS CETIN a.s. | 265.5K | 11 |
| AS30764CZ | PODA-AS PODA a.s. | 219.4K | 18 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| — |
| — |
| 0 |
| AS206566CZ | SAVANACZ Webglobe, s.r.o. | — | — | 0 |
| AS47200CZ | NIXCZ-RS NIX.CZ z.s.p.o. | — | — | 0 |
| AS60727CZ | K2-cloud K2 atmitec s.r.o. | — | — | 0 |
| AS216021CZ | STEVIJO-AS Stefan Johannes Mayer | — | 1 | 1 |
| AS207575CZ | brabeczc-as Zahradnicke centrum Brabec, s.r.o. | — | 1 | 1 |
| AS214952CZ | MJANIK-AS mjanik.net s.r.o. | — | 65.5K | 1 |
| AS215777CZ | CINCURA Jiri Cincura | — | 1 | 1 |
| AS219015CZ | as-mae Mae Vielle | — | 2 | 2 |
| AS213770CZ | GTTCZ1 GTT a.s. | — | — | 0 |
| AS212204CZ | psk-cro FORTUNA GAME a.s. | — | — | 0 |
| AS25036CZ | TERMSNET-AS O2 Czech Republic, a.s. | — | — | 0 |
| AS200848CZ | luminet2 ISP Alliance a.s. | — | — | 0 |
| AS210951CZ | MIEGLNET Josef Miegl | — | 13 | 13 |
| AS202733CZ | OKCOMP OK COMP s.r.o. | — | 1 | 1 |
| AS47627CZ | NIXSK-RS NIX.CZ z.s.p.o. | — | — | 0 |
| AS29401CZ | SUPERNETWORKSK-AS SH.cz s.r.o. | — | — | 0 |
| AS201457CZ | KOOPERATIVA-AS2 Kooperativa pojistovna, a.s., Vienna Insurance Group | — | — | 0 |
| AS60143CZ | BR-IX-RS Brno University of Technology | — | — | 0 |
| AS212234CZ | SMEJKALOVA SMEJKALOVA Marketa | — | — | 0 |
| AS21142CZ | PRAGONET-TRANSIT-AS T-Mobile Czech Republic a.s. | — | — | 0 |
| AS2605CZ | CESNET CESNET z.s.p.o. | — | — | 0 |
| AS207855CZ | ModernTV-Anycast SychrovNET s.r.o | — | — | 0 |
| AS211193CZ | Tlapnet-CZ-AS Jiri Tlapak | — | — | 0 |
| AS200985CZ | BOKNET TNtech, s.r.o. | — | 65.5K | 1 |
| AS198564CZ | ASELCOMA STARNET, s.r.o. | — | — | 0 |
| AS218913CZ | TITANSOFTWARE Titan Software z.s. | — | — | 0 |
| AS201761CZ | GS-NET ISP Alliance a.s. | — | — | 0 |
| AS202522CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | — | — | 0 |
| AS44672CZ | DataSpring3 Cloud4com s.r.o. | — | — | 0 |
| AS57823CZ | ASKKNET Libor Kotoucek | — | — | 0 |
| AS197376CZ | TEST-TRANSIT-AS-IPV6PROJECT-EU Cloud4com s.r.o. | — | — | 0 |
| AS211445CZ | meukralupy Mesto Kralupy nad Vltavou | — | — | 0 |
| AS206344CZ | AUKRO Fortion Networks, s.r.o. | — | — | 0 |
| AS15485CZ | GTSNOVERA T-Mobile Czech Republic a.s. | — | — | 0 |
| AS61195CZ | PEERINGCZ-AS Peering.cz s.r.o. | — | — | 0 |
| AS207583CZ | technologicke-centrum-as Technologicke centrum a.s. | — | 1 | 1 |
| AS209680CZ | JetBrains-AS JetBrains, s. r. o. | — | — | 0 |
| AS201934CZ | SATAN-NET HD Internet s.r.o. | — | — | 0 |
| AS203450CZ | LogicPrim Edera Group a.s. | — | — | 0 |
| AS203743CZ | BroumNet ISP Alliance a.s. | — | — | 0 |
| AS2819CZ | GTSCZ T-Mobile Czech Republic a.s. | — | — | 0 |
| AS206601CZ | ZELENADATA-AS FASTER CZ spol. s r.o. | — | — | 0 |
| AS207887CZ | FIOBANKA-AS Fio banka, a.s. | — | — | 0 |
| AS57158CZ | ASMELVI ISP Alliance a.s. | — | — | 0 |
| AS22298CZ | BASTL Jan Vaclav | — | — | 0 |
| AS207576CZ | kovoplazma-as KOVO - PLAZMA s.r.o. | — | 1 | 1 |